Perhaps you should try some spelling variations:
vat hanh » vat thanh, van hanh, va hanh
dang van » hoang van, hang va
te sach » toc sach
ve chat » va chat, van chat
ve cham » va cham, vu cham, ve chim
lang xa » lang ha, dang xay, lang van
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y ((lang xa) or (dang van)) hoi. hieu ((ve cham) OR (ve chat)) thuc vat hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((lang xa) OR (dang van)) hoi. hieu ((ve cham) OR (ve chat)) thuc vat hanh vi cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((lang xa) or (dang van)) hoi. hieu ((ve cham) OR (ve chat)) thuc vat hanh vi cua tu*".